lv2dynparam - LV2 extension for dynamic parameters

lv2dynparam is a LV2 plugin interface extension that enables plugin
parameters to appear and disappear (i.e. number of voices). It also
allows nested grouping of parameters. Groups can be used for things
like ADSR abstraction, i.e. group of 4 float parameters.
The extension should be suitable for all plugins that expose many
and/or complex data types, like samplers, non-trivial synths, etc.